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Currently, the tlb range flush threshold is fixed and set to 4k for
all platforms. However, it should be platform specific as it completely
depends upon how platform actually implements sfence instruction.
Define a platform feature that allows every individual platform to set
different values. If a platform doesn't define it, just use a page size as
the threshold.
Signed-off-by: Atish Patra <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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OpenSBI manages outstanding TLB flush requests by queueing
them in a fifo synchronously. An ipi sync which uses an
atomic operation on MMIO address is no longer required.
Remove the ipi sync method from platform header and all usage.
Signed-off-by: Atish Patra <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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Add version control of sbi_platform structure
- Add opensbi_version, this gives information of opensbi revision on
which the sbi_platform table was created.
- Add platform_version field in sbi_platform structure for platform
level version control.
Signed-off-by: Abner Chang <[email protected]>
Acked-by: Anup Patel <[email protected]>
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Move platform opensbi functions to sbi_platform_operations structure.
Both sbi_platform and sbi_platform_operations structures are maintained
by platform vendors.
Signed-off-by: Abner Chang <[email protected]>
Acked-by: Anup Patel <[email protected]>
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Noisy commit, no functional changes.
Generated with an current upstream clang-format and:
clang-format -i $(find . -name \*.[ch])
Signed-off-by: Olof Johansson <[email protected]>
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platform should be a read-only variable, if it is placed in the data
segment, it may be exploited.
Signed-off-by: Xiang Wang <[email protected]>
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As per the current SBI specification, sbi_getc should return
an int instead of char.
In case of FIFO is empty, return -1 as per the specification.
Reported-by: Sergi Granell <[email protected]>
Suggested-by:Thadeu Lima de Souza Cascardo <[email protected]>
Signed-off-by: Atish Patra <[email protected]>
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There was a space instead of '_' in the function `platform_final_init`.
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Create commented template files to use as a base for new platforms
support implementation.
Signed-off-by: Damien Le Moal <[email protected]>
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